Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co <inf>2.16</inf>Ni<inf>0.24</inf>Mg<inf>0.60</inf>)(AsO<inf>4</inf>) <inf>2</inf>·8 H<inf>2</inf>O

Francesco Capitelli, Mohamed Elaatmani, My Driss Lalaoui, Juan F. Piniella

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11 Citas (Scopus)

Resumen

The crystal structure of erythrite from Bouzaer, south Morocco, was refined through single crystal X-ray diffraction data, within monoclinic space group C2/m, with the following unit cell constants: a = 10.187(1) Å, b = 13.470(1) Å, c = 4.755(1) Å, β = 104.971(2)°, V = 630.3(2) Å3. Transition metal and magnesium cations are randomly distributed over two special positions Me(1) and Me(2), making up single and dimerical octahedral groups, connected by (AsO4) tetrahedra groups, in order to form infinite sheets down b. Such sheets are held together within the three-dimensional framework owing to the presence of an intricate hydrogen bond network. An infrared spectrum was collected in order to achieve information on the HOH bending modes of the erythrite. © by Oldenbourg Wissenschaftsverlag.
Idioma originalInglés
Páginas (desde-hasta)676-679
PublicaciónZeitschrift fur Kristallographie
Volumen222
N.º12
DOI
EstadoPublicada - 1 ene 2007

Huella

Profundice en los temas de investigación de 'Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co <inf>2.16</inf>Ni<inf>0.24</inf>Mg<inf>0.60</inf>)(AsO<inf>4</inf>) <inf>2</inf>·8 H<inf>2</inf>O'. En conjunto forman una huella única.

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